srcache_nginx+redis构建缓存系统-优快云博客

本文链接：https://blog.youkuaiyun.com/oyhf521/article/details/84814109

本文介绍如何利用Nginx的srcache模块和Redis构建高效的动态页面缓存系统。通过详细配置示例，展示了如何设置Nginx和Redis以实现页面缓存，包括缓存存储、获取及过期策略。

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在《memc_nginx+srcache_nginx+memcached构建透明的动态页面缓存》一文中，我们使用到memcached来作为缓存载体。想必大家都知道memcached有存储大小的限制，不得超过1M。本文将使用redis来作为缓存载体。nginx的srcache_nginx模块指令参数解释参见《memc_nginx+srcache_nginx+memcached构建透明的动态页面缓存》。

1. nginx模块

--add-module=../modules/ngx_devel_kit-0.2.18 --add-module=../modules/set-misc-nginx-module-0.22rc8 --add-module=../modules/srcache-nginx-module-0.22 --add-module=../modules/redis-nginx-module-0.3.6 --add-module=../modules/redis2-nginx-module-0.10

-- add - module = . . / modules / ngx_devel_kit - 0.2.18

-- add - module = . . / modules / set - misc - nginx - module - 0.22rc8

-- add - module = . . / modules / srcache - nginx - module - 0.22

-- add - module = . . / modules / redis - nginx - module - 0.3.6

-- add - module = . . / modules / redis2 - nginx - module - 0.10

nginx模块安装参见ttlsa.com中相关文档。

2. redis安装配置

安装步骤参见：http://www.ttlsa.com/html/1646.html
配置参数解释参见：http://www.ttlsa.com/html/1226.html
配置实例：
# vim redis.conf

daemonize yes pidfile /var/run/redis-6379.pid port 6379 bind 127.0.0.1 timeout 0 tcp-keepalive 0 loglevel notice logfile stdout databases 16 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename dump.rdb slave-serve-stale-data yes slave-read-only yes repl-disable-tcp-nodelay no slave-priority 100 maxmemory 8096mb maxmemory-policy volatile-ttl appendonly no appen<a href="http://www.ttlsa.com/dfs/" title="dfs"target="_blank">dfs</a>ync everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb <a href="http://www.ttlsa.com/monitor/lua/" title="lua"target="_blank">lua</a>-time-limit 5000 slowlog-log-slower-than 10000 slowlog-max-len 128 hash-max-ziplist-entries 512 hash-max-ziplist-value 64 list-max-ziplist-entries 512 list-max-ziplist-value 64 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value 64 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes

daemonize yes

pidfile / var / run / redis - 6379.pid

port 6379

bind 127.0.0.1

timeout 0

tcp - keepalive 0

loglevel notice

logfile stdout

databases 16

stop - writes - on - bgsave - error yes

rdbcompression yes

rdbchecksum yes

dbfilename dump . rdb

slave - serve - stale - data yes

slave - read - only yes

repl - disable - tcp - nodelay no

slave - priority 100

maxmemory 8096mb

maxmemory - policy volatile - ttl

appendonly no

appendfsync everysec

no - appendfsync - on - rewrite no

auto - aof - rewrite - percentage 100

auto - aof - rewrite - min - size 64mb

lua - time - limit 5000

slowlog - log - slower - than 10000

slowlog - max - len 128

hash - max - ziplist - entries 512

hash - max - ziplist - value 64

list - max - ziplist - entries 512

list - max - ziplist - value 64

set - max - intset - entries 512

zset - max - ziplist - entries 128

zset - max - ziplist - value 64

activerehashing yes

client - output - buffer - limit normal 0 0 0

client - output - buffer - limit slave 256mb 64mb 60

client - output - buffer - limit pubsub 32mb 8mb 60

hz 10

aof - rewrite - incremental - fsync yes

由于只把redis当做缓存使用，因此没有启用持久化。

3. nginx配置

# vim nginx.conf

http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '"$status" $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for" ' '"$gzip_ratio" $request_time $bytes_sent $request_length'; log_format srcache_log '$remote_addr - $remote_user [$time_local] "$request" ' '"$status" $body_bytes_sent $request_time $bytes_sent $request_length ' '[$upstream_response_time] [$srcache_fetch_status] [$srcache_store_status] [$srcache_expire]'; set_real_ip_from 10.0.0.0/8; real_ip_header X-Forwarded-For; include vhosts/test.ttlsa.com.conf; }

http

{

include mime . types ;

default_type application / octet - stream ;

log_format main '$remote_addr - $remote_user [$time_local] "$request" '

'"$status" $body_bytes_sent "$http_referer" '

'"$http_user_agent" "$http_x_forwarded_for" '

'"$gzip_ratio" $request_time $bytes_sent $request_length' ;

log_format srcache _log '$remote_addr - $remote_user [$time_local] "$request" '

'"$status" $body_bytes_sent $request_time $bytes_sent $request_length '

'[$upstream_response_time] [$srcache_fetch_status] [$srcache_store_status] [$srcache_expire]' ;

set_real_ip _from 10.0.0.0 / 8 ;

real_ip _header X - Forwarded - For ;

include vhosts / test . ttlsa . com . conf ;

}

# vim vhosts/test.ttlsa.com.conf

upstream redis { server 127.0.0.1:6379; keepalive 512; } server { listen 80; server_name test.ttlsa.com; index index.html index.htm index.<a href="http://www.ttlsa.com/php/" title="php"target="_blank">php</a>; root /data/test.ttlsa.com/webroot; location ~ .*\.php { srcache_store_private on; srcache_methods GET; srcache_response_cache_control off; if ($uri ~ /ttlsa.com/pp.php$){ set $key $request_uri; set_escape_uri $escaped_key $key; srcache_fetch GET /redis $key; srcache_default_expire 172800; srcache_store PUT /redis2 key=$escaped_key&exptime=$srcache_expire; #add_header X-Cached-From $srcache_fetch_status; #set_md5 $md5key $key; #add_header X-md5-key $md5key; #add_header X-Cached-Store $srcache_store_status; #add_header X-Key $key; #add_header X-Query_String $query_string; #add_header X-expire $srcache_expire; access_log /data/httplogs/test.ttlsa.com-photo-access.log srcache_log; } include fastcgi_params; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_connect_timeout 60; fastcgi_send_timeout 180; fastcgi_read_timeout 180; fastcgi_buffer_size 128k; fastcgi_buffers 4 256k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_intercept_errors on; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_split_path_info ^(.+\.php)(.*)$; fastcgi_param PATH_INFO $fastcgi_path_info; } location = /redis { internal; set_md5 $redis_key $args; redis_pass redis; } location = /redis2 { internal; set_unescape_uri $exptime $arg_exptime; set_unescape_uri $key $arg_key; set_md5 $key; redis2_query set $key $echo_request_body; redis2_query expire $key $exptime; redis2_pass redis; } error_log /data/httplogs/test.ttlsa.com-error.log; access_log /data/httplogs/test.ttlsa.com-aceess.log main; }